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14-slot PXI (PCI extensions for instrumentation) chassis

A chassis and slot technology, applied in the field of measurement and testing, can solve the problems that the working environment conditions cannot meet military requirements, etc., and achieve the effect of compact structure, reasonable overall layout, and obvious heat dissipation effect

Inactive Publication Date: 2011-08-31
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vast majority of NI PXI chassis imported from abroad implement commercial standards, and cannot meet military requirements when the working environment is harsh

Method used

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  • 14-slot PXI (PCI extensions for instrumentation) chassis
  • 14-slot PXI (PCI extensions for instrumentation) chassis
  • 14-slot PXI (PCI extensions for instrumentation) chassis

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Embodiment Construction

[0015] The specific implementation process of the present invention will be further described in detail below.

[0016] see figure 1 , this figure is a structural block diagram of a 14-slot PXI chassis of the present invention, mainly comprising a 14-slot bus backplane 1, a power supply air duct partition 2, a chassis switching power supply 3, a chassis fan 4, and a PXI module 5; the overall size of the chassis is 483mmx178mmx300mm; The chassis structure is designed with two air ducts for module heat dissipation and power heat dissipation. The heat dissipation capacity of the module is 25W in a single slot, and the heat dissipation capacity of the power supply is 60W.

[0017] The 14-slot bus backplane 1 has 14 slots in total. The first slot is used as the power supply and mechanical interface of the bus system controller, and the 2nd to 14th slots are used as the power supply and mechanical interface of the peripheral modules. In addition, the first slot is used as the power ...

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PUM

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Abstract

The invention relates to a 14-slot PXI (PCI extensions for instrumentation) chassis which comprises a 14-slot bus rear plate, a power supply air-channel clapboard, a chassis switch power supply, a chassis fan and a PXI module, wherein the 14-slot bus rear plate is provided with 14 slots in total; the first slot is used as a power supply and mechanical interface of a bus system controller; the second to the fourteenth slots are used as the power supply and mechanical interfaces of peripheral modules; the second slot is provided with a star-shaped trigger controller for supplying 13 trigger signals to each extension slot; the power supply air-channel clapboard is used for separating a power supply air-channel from a chassis module radiating air-channel; and the chassis switch power supply is used for supplying multichannel direct current voltages to the 14-slot bus rear plate and comprises AC / DC (alternated current or direct current) power supply and DC / AC power supply. The chassis provided by the invention has a compact structure layout. The design for a layout air channel of a heat source part and the designs for the chassis structure intensity, the vibration resistance and the electromagnetic compatibility are comprehensively considered. The chassis has the advantages of reasonable integral layout, compact structure and obvious radiating effect.

Description

technical field [0001] The invention belongs to the technical field of measurement and testing, and relates to an automatic refrigeration wide-temperature class PXI case, in particular to a 14-slot PXI case. Background technique [0002] In 1997, on the basis of the Compact PCI bus, NI Corporation of the United States expanded the trigger bus, reference clock, local bus and star trigger bus to form the PXI bus. The PXI bus absorbs the technical advantages of the VXI bus and is compatible with the Compact PCI bus. [0003] The PXI bus is basically the same as the Compact PCI bus in terms of mechanical structure. The PXI standard also defines a standardized chassis including a backplane, power supply, cooling system, and the mechanical structure of the installation module slot. [0004] At present, the PXI system has been widely and successfully used in automotive testing, semiconductor testing, functional testing, aviation equipment testing and military applications. At pre...

Claims

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Application Information

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IPC IPC(8): G06F1/18H05K7/20
Inventor 陈海波
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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